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最新的 9i DBA 1Z0-007 免費考試真題:

1. The STUDENT_GRADES table has these columns
STUDENT_ID NUMBER(12)
SEMESTER_END DATE
GPA NUMBER(4,3)
Which statement finds students who have a grade point average (GPA) greater than 3.0 for the calendar year 2001?

A) SELECT student_id, gpa
FROM student_grades
WHERE semester_end BETWEEN '01-JAN-2001' AND '31-DEC-2001'
OR gpa > 3.0;
B) SELECT student_id, gpa
FROM student_grades
WHERE semester_end > '01-JAN-2001' OR semester_end < '31-DEC-2001' AND gpa >= 3.0;
C) SELECT student_id, gpa
FROM student_grades
WHERE semester_end BETWEEN '01-JAN-2001' AND '31-DEC-2001'
AND gpa > 3.0;
D) SELECT student_id, gpa
FROM student_grades
WHERE semester_end BETWEEN '01-JAN-2001' AND '31-DEC-2001'
OR gpa > 3.;
E) SELECT student_id, gpa
FROM student_grades
WHERE semester_end BETWEEN '01-JAN-2001' AND '31-DEC-2001'
AND gpa gt 3.0;

2. The CUSTOMERS table has these columns:

The CUSTOMER_ID column is the primary key for the table.
You need to determine how dispersed your customer base is.
Which expression finds the number of different countries represented in the CUSTOMERS table?

A) COUNT DISTINCT UPPER(country_address)
B) COUNT(DIFF(UPPER(country_address)))
C) COUNT(UNIQUE(UPPER(country_address)))
D) COUNT(DISTINCT (UPPER(country_address)))
E) COUNT(UPPER(country_address))

3. Exhibit

Evaluate this SQL statement: SELECT cust_id, ord_total FROM orders WHERE ord_total > ANY (SELECT ord_total FROM orders WHERE cust_id IN (SELECT cust_id FROM customers WHERE city LIKE 'New York'));
What is the result when the above query is executed?

A) Option E
B) Option B
C) Option C
D) Option A
E) Option F
F) Option D

4. What is true about the WITH GRANT OPTION clause?

A) It allows the grantee to grant object privileges to other users and roles.
B) It allows a grantee DBA privileges.
C) It is required syntax for object privileges.
D) It allows privileges on specified columns of tables.
E) It is used to grant an object privilege on a foreign key column.

5. Which three statements about subqueries are true? (Choose three.)

A) A subquery can have more than one main query.
B) The subquery and main query can retrieve data from different tables.
C) Only one column or expression can be compared between the subquery and main query.
D) The subquery and main query must retrieve data from the same table.
E) A main query can have more than one subquery.
F) Multiple columns or expression can be compared between the subquery and main query.

問題與答案：